empty sociale gallery over a good one on click

Hello,
Iím Laurent. I use social gallery with justified image grid. Itís wxorking fine without social gallery but not with social gallery unable.
When I clcik on my thumbnail I have two social gallery popup: one empty and the other is good with image inside. I have to close it and after all is good.
You can have a loook here:http://inkkulture.com/mondial-du-tatouage-2014-paris/